Pusher member for book-stitching machines



M. CHRISTENSEN.

PUSHER MEMBER FOR BOOK STITCHING MACHINES.

APPLICATION FILED DEC-20,1919- 1,360,886, Patented Nov. 30, 1920.

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ounce STATES MARTIN CHRISTENSEN, OF RACINE, WISCONSIN,

PATENT OFFICE.

ASBIGNOR r0 cameraman MACHINE CQ, OF BACINE, WISCONSIN, A CORPORATION OF WISCONSIN. PUSHER MEMBER FOR BOOK-STITCHING MACHINES.

Specification of Letters Patent.

Application filed December 20, 1918. Serial No. 846,250.

T 0 all whom it may concern:

Be it known that I, MARTIN CHRISTENSEN, a citizen of the United States, and resident of Racine, in the county of Racine and State of WVisconsin, have invented new and useful Im Movements in Pusher Members for Book-btitching Machines, of which the followin is a descriptiom'reference being had to tie accompanying drawings, whic are a part of this specification.

The present invention relates to certain new and useful improvements in conveyers for book stitching machines and refers more particularly to the pusher members carried by the conveyers.

The prnnary object of thepresent invention is tov provide a pusher member for a book stitching machine conveyer especlally adapted for use with books having the ends of the cover extended beyond the ends of thebook leaves and has for one object to provide what may be called an adjustable stop for leaves and extension covers.

Another object of my invention is to provide a. conveyer pus er member having means for feeding the cover and leaves of a book to a stitcher in their proper relative positions which may be readily adjusted and which is readily detachable from the conveyer.

A further object of this invention is to PIOXldQ a pusher member of the class described in which the book leaf engaging members serve to secure the pusher member to the book stitching machine conveyer.

With the above and other objects in view whichwill appear as the description proceeds my invention resides in the novel construction, combination, and arrangement of parts substantially as described and hereinafter more particularly defined by the appended claims, it being understood that such changes in the precise embodiment of the herein disclosed invention may be made as come within the scope of the claims.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention constructed according to the best mode I have so far devised for the practical application of the principles thereof, and in which:

Figure 1 is a side view of a movable saddle conveyer illustrating my novel form of pusher member as secured thereto.

Fig. 2 is a view part in section and part in elevation taken through the movable saddle conveyer on the line 2-2 of Fig. 1.

1 1g. 3 1s a perspective view of my novel form of pusher member detached from the conveyor, and

Fig. 4 1s a detailed fragmentar sectional v ew taken on the line 4-4 of ig. 2, said view llustrating the manner in which the book 1s positioned on the saddle with the cover extended beyond the leaves.

The particular form of saddle conve er I employ with my novel form of pus or member is immaterial and in the drawing I have illustrated the same as a plurality of nverted V-shaped saddles 5 having depend mglugs for pivotally receiving the conveyer cha1n hnks 6, each member 5 having apertures -7 in'its side walls for removably receiving a pusher member 8.

e pusher member 8 consists of a U- shaped member 9 adapted to be positioned With Its arms projecting from the sides of any one of the members 5 through the apertures 7 as depicted in Fig. 2 and said mem her is secured in this position b means of book leaf engaging steps 10. A leaf engagmg member 10 is. secured to each arm of the U-shaped member 9 close to the point where it projects from the adjacent side wall of the saddle member 5 and is secured to said member by means of a shank portion 11 whlch is engaged in an aperture 12 formed in said member.

The leaf engaging members 10 have their shanks secured in the apertures 12 by means of suitable binding or set screws 13 which permit the ready adjustment of said members so that the relative distance between the front face of each book leaf engaging member and the front face of the member 9 may be readily varied.

In use, the stop 9is adjusted so that when the book leaves 14 are placed upon the conveyer they will engage against the stop 10 which is as thick or thicker than the number of leaves being worked upon and when the book cover 15 is placed thereon the same will engage 'the member 9 which provides a book cover stop or engaging member. If it is desired to have the ends of the cover 15 to project say a quarter of an inch beyond the ends of theleaves the stops 10 are so adjusted.

As will be readily seen by reference to Fig. 2 the stops 10 provide means for secur- 'I book to be stitched are positioned proper relative positions.

'ing the members 9.to the conveyer saddle chine conveyer, comprising a leaf engaging part, and a cover engaging part having its work engaging face offset with respect to the work engaging face of said leaf engaging part, whereby the cover and leaf ofa 2. A pusher member for a stitching machine conveyer, comprising a leaf engaging part, a" cover engaging part having its work engaging face offset with respect to tended therefrom, and a book leaf engaging stop secured to each arm of said .U-shaped the work engaging face of said leaf engaging part, whereby the cover and leaf. ofia book' to be stitched are positioned in their proper relative positions, and means for ad justing the distance between the work engaging faces of said parts.

3. A device of the class described, comprising a member for engaging a book cover, and a second member carried by said first mentioned member for engaging a book leaf, so that the ends of the cover will ex tend beyond the adjacent ends ofthe leaf.

4'. A pusher member for a stitching machine conveyer comprising a book cover engaging member, and a book leaf engaging member adjustably carried by the cover en- "gaging member and including a stop .hav-

ing a shank portion adjustably secured to the 'cover engaging member.

5. A pusher member for a stitching main their matinee means releasablysecuring the shank in said aperture so that the distance between the front faces of the coverengaging member and the leaf engaging faces may be adjusted.

,6. The combination with a stitching-machine conveyer including'inverted V-shaped ad'dle members, of means for positioning a book cover and leaves onthe saddle mem bers of the conveyer comprisinga U-shaped member passed through the sides of one of the saddle members and having its ends ex member close to the saddle member. 1

7. The combinationwitli a stitchingmachine conveyer including inverted V-shaped saddle members, of means for positioning a book cover and leaves on the saddle members of the conveyer comprising a U- shaped member passed through the sides of adjacent side of the one of the saddle members and having its ends extended therefrom, a book leaf engaging stop secured to each arm ofth U-- shaped member close to the adjacent side of the saddle member, and means for adjustably' varying .the relative distance be- -.tween the leadlng faces of the U-shaped member and the book leaf stops.

In testimony whereof, I aflix my signature. MARTIN CHRISTENSEN. 

